Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 367Get this manual
CONNECTING OIL INJECTION PUMP LINK ARM When carburetor linkage is at idle positionalignment mark on oil injection arm should be in-line with mark on casting as shown
OPERATION OF THE OIL INJECTION SYSTEM
IMPORTANT: The outboard is equipped with warning systemhorn and sensorsto alert the operator of an overheat or low oil situationThis system self-tests each time the ignition key is turned to theONpositionThe horn willbeep" times and pauseDuring an actual failurethe system will continue to beep and pause cyclically
until the problem is corrected THE OPERATOR MUST DETERMINE WHETHER LOW OIL OR AN OVERHEAT CONDITION HAS OCCURRED 1Verify fill cap gaskets or O-rings are in place and caps are tight on engine reservoir tank and remole oil tank
Verify remote gasoline and oil mixture of 50:1 is used during the initial break-in of the engine or after extended storageBe certain the warning horn is operational51702link Rod